Light bar



FIG. 1 is a front perspective view of a light bar showing our newdesign;

FIG. 2 is a front view thereof;

FIG. 3 is a back view thereof;

FIG. 4 is a right side view thereof;

FIG. 5 is a left side view thereof;

FIG. 6 is a top view thereof;

FIG. 7 is a bottom view thereof; and,

FIG. 8 is a rear perspective view thereof.

The broken lines included illustrate portions of light bar that form nopart of the claimed design.

CLAIM The ornamental design for a light bar, as shown and described.